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About Constellation

Constellation Summary

Constellation, an Exelon Company, is a leading competitive energy company with over 2.5 million residential and business electricity customers. Two thirds of the Fortune 100 companies rely on Constellation for their energy service. In 2016, energy efficiency projects implemented by Constellation saved customers more than 48,000 MWh of electricity. By doing this, they were also able to prevent more than 28,000 metric tons of carbon dioxide emissions.

Constellation is also dedicated to giving back to the community and donated over $4 million to charities and 27,000 employee volunteer hours in 2016. Headquartered in Chicago, IL, Constellation provides power, natural gas, renewable energy, home services and energy management products and services for customers across the continental United States.

Constellation Electricity Rates

Constellations offers customers budget purchasing flexibility, with options for fixed, blended pricing solutions and renewable energy. With just a few clicks you can lock in your Constellation electricity rate that won’t fluctuate month to month.

Want to Compare Constellation Rates? makes it easy to compare Constellation rates. To start comparing, simply type your zip code into our Compare and Switch tool located on the top right side of the screen or go to homepage. After clicking the ‘Search’ button, you will be able to compare Constellation rates and a number of different electricity providers for your current utility.